Henry baker



J (No Model H. BAKER. TRAGK HARROW.

,206. Patented Mar. 2'7, 1894.

AL umoamrnmacouwuw.

ABNINGTON, u. a.

STATES PATENT OFFICE.

HENRY BAKER, OF SANTA ROSA, CALIFORNIA, ASSIGNOR OF ONE-HALF TO GEORGEE. GUERNE, OF SAME PLACE.

TRACK-HARROW.

SPECIFICATION forming part of Letters Patent No. 517,206, dated March27, 1894.

Application filed May 1, 1893. Serial ITO-472,606- (N0 model.)

To aZZ whom itlmwy concern: I

Be it known that I, HENRY BAKER, a citizen of the United States,residing at Santa Rosa, Sonoma county, State of California, haveinvented an Improvement in Track-Harrows; and I hereby declare thefollowing to be a full, clear, and exact description of the same.

My invention relates to the class of harrows especially adapted for useon race racks.

It consists in the novel construction and combination of parts which Ishall hereinafter fully describe and specifically claim.

The object of my invention is to provide a harrow which by reason of themounting of its teeth and the adjustability of its frame is adapted tobe readily set and conveniently and effectively used for properlypreparing and dressing the surface of race courses and tracks.

Referring to the accompanying drawings for a more complete explanationof my invention -Figure 1 is a perspective View of my harrow. Fig. 2 isa detail view showing the manner of attaching the teeth.

The frame of the harrow consists of a longitudinal central bar A, one ormore pairs of rearwardly divergent bars B, and suitable orossbars C.Upon the rear of the frame is j ournaled an axle D having endvcranks (1upon which are mounted the rear wheels E. Pivotally connected with theforward end of bar A is a bent or angled clevis F, in the forward end ofwhich is mounted the single front Wheel G.

In the other or lever end of the clevis is made a series of holes f inany of which, according to the height desired, is fitted a crossbarf, towhich the draft linkH is connected. To this bar is also secured arearwardly extending connecting rod 1, the rear end of which is joinedto an operating lever J which is secured to the axle D, said lever beingcontrolled by means of a pawl j and rack j. Now, upon throwing lever Jforward, the axle D will be rocked,and by throwing its cranksdownwardly, will lift the rear end of the frame. At the same time and bythe same movement, acting through rod 1, the pivoted clevis F will bemoved toward avertical line and will thereby lift the forward end of theframe. By reversing lever J, the Whole frame will be lowered. Thisadjustment is equal and uniform throughout, and thus the depth at whichthe teeth will run can be quickly and accurately regulated.

The bodies of the teeth K are angular in crosssection, and fit incorrespondinglyshaped grooves or recesses I) made in the outer sides ofthe inclined bars B. They are secured in these seats by means offace-plates L which are applied to the sides of bars B, and by means ofboltsZ are forced to bind upon the entire row of teeth on the sidenearest them. By loosening one or more of these bolts in the vicinity ofanytooth, it may be independently adjusted or removed and anothersubstituted. Thus the required uniformity of adjustment necessary forthe particular use of track harrowing can be easily and accuratelyefiected;

By the proper vertical adjustment of the cross bar f of the clevis, thefront portion of the frame can be initially regulated to level the frameor to set it at such inclination as may be desired. Through theconnection of the clevis cross bar with the main lever J by the rod I,the draft is transferred to the back of the harrow, thus leaving thefront free to rest on its Wheel, and to ride evenly without tendency torise, as is the case Where the draft is in front.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is= v 1. A harrow consisting of atooth-carrying frame, a rocking axle at the rear portion of the frame,and having end cranks, wheels journaled on said cranks, a swingingclevis mounted on a horizontal axis at the forward end of the framehaving a wheel, an operatin g lever for rocking the crank axle and a rodconnecting said lever with the swinging clevis, whereby the cranks ofthe axle and theclevis are operated simultaneously to vertically adjustthe frame, said rod having its forward end adjustably secured to theclevis substantially as herein described.

2. A harrow consisting of a tooth-carrying frame, a rocking axle at therear portion of the frame and having end cranks, wheels journaled onsaid cranks, the swinging clevis cross-bar of the clevis, substantiallyas herein at the forward end of the frame, having in its described.

10 upper portion the series of holes, the adj nst- In Witness whereof Ihave hereunto set my able cross-bar mounted in said holes and carhand.

5 rying the draftlink, the forward wheel monn t- HENRY BAKER.

ed in the lower end of said elevis, the operat- \Vitnesses: ing leverfor rocking the crank axle, and the N. W. BOSTWICK,

rod connecting said lever with the adjustable \V. H. LUMSDEN.

